The GreatCall 5Star Urgent Response is a medical alert unit we have used for a few years. We have used two Greatcall units as we started out with the 5Star and then replaced the 5Star with the Blue 5-Star Splash . I have been very pleased with the units and am impressed by the use of the GPS technology. This was one of the features which originally attracted me to Greatcall when I was researching medical alert devices. The GPS technology allows the Greatcall unit and its' owner to be … [Read more...] about GreatCall Medical Alert Review: Splash